The most competent authorities gave the answers we chose to use.
His capabilities as a soldier have been generally recognized by competent authorities.
A competent, methodical assassin, she didn't make the mistake of trying to collect from someone not on the list.
As to judgment debts, it is sufficient to say that, when by the judgment of a court of competent jurisdiction an order is made that a sum of money be paid by one of two parties to another, such a debt is not only enforceable by process of court, but it can be sued upon as if it were an ordinary debt.
Century-long wars had been fought in Damian's father's time over who claimed a discovered Oracle, no matter how competent the Oracle turned out.